Device for sealing coke oven closures



Sept. 15, 1931.

C. OTTO DEVICE FOR SEALING COKE OVENICLOSURES Filed Dec. 10, 1927 2 Sheets-Sheet 1 INVENTOR A TTORNLY Sept. 15, 1931. c, OTTO 1,823,121

DEVICE FOR SEALING CO KE OVEN CLOSURE S Fi led Dec. 10, 1927 A 2 Sheets-Sheet 2- INVENTOR Patented Sept. 15, v1931 UNITED STATES" CARL OTTO, OF ESSEN-ON-THE-RUER, GERMANY DEVICE FOR SEALING COKE OVEN CLOSUBES Application filed December 10, 1927, Serial No. 239,047, and in Germany December 17, 1926.

The invention relates to self-sealing coke oven doors having a frame shiftably a1 ranged on the door and carrying a packing means. It has already often been proposed 5 to jointly operate from one common place the individual devices serving to press the sealing frame against the stationary door frame. This arrangement however suffers from the. drawback that only some of the pressing means are really tightened, due to portions of the door getting warped or to the door being inserted in an inaccurate position, whilst some of these means remam loose In this way therefore a unlform seallng effect is not obtained.

My invention has for its object to avoid this drawback. This object is obtained by the construction, that said joint connection between the individual pressing means is 'separated' by a positive or so-called forceclosure connection. From this construction it results that each individual pressing means always exerts a pressure on the sealing frame, independently of the position the door happens to assume or of that of individual door portions, so that a reliable sealing effect is obtained on the entire circumference of the door.

A preferred embodiment of the subject-- matter of my invention is illustrated by way of example in the accompanying drawings, in which: i I

Figure 1 is the front view of a coke oven chamber with inserted door,

Figure 2 is a vertical section on the linev 2-2 of Figure 1,

Figure3 is a horizontal section on the line 3-3 of Figure 1, in enlarged scale,

Figure 4 is an enlarged front detail view showlng the hinged connection of the fishplates to the sealing frame, I

Figure 5 is an enlarged side detail view in detail several modithe sealing frame d are hingedly interconnected by fish-plates f and angle irons g, so that each element may be sealed individually. As shown in Figures 4 and 5, one end of fishplates f, on both sides of a rib of frame 0?, are connected, as by bolts 2 to one of the elements of the frame (1. The other end of the fishplates is connected to an adjacent element of the frame by means of a bolt m, which passes through an elongated slot at y, in the fishplates and rib of .the frame. Bolt w is of smaller diameter than the slot. The fishplates thus hingedly interconnect the elements of frame d, and permit their relative movement.

To seal the elements of the frame d a sealing device is provided which substantially consists of straightbars z' guided in eyes it, several inclined pressure pieces m inclined down' wardly and inwardly toward the oven and rigidly fixed on'the buckstays k, and antifriction members n arranged between the latter and the bars 2'. The bars 11. bear against th'e'inclinedmembers m and against the bars 2'. By this construction the inclinedmembers m exert .a wedging action against bars n, causing the latterto press against bars 2' and force them against the packing compressing frame d. Bars 2' are likewise subdivided into individual elements and interconnected by pins 0, forming an articulated frame. Furthermore, to avoid clamping .of the bars 2' on the angle irons g, spring members ;0 are arranged on the angle irons causing an elastic abutment of the bars z. a

' The angle irons located on the top and bot- "tom of door a and denoted by q, have one leg rockingly mounted around a horizontal pin '1- on frame d. The other free legs respectively press against the horizontal upper and lower portions of frame at.

The anti-friction members at may be of different design, as illustrated in Figures 7 to 9. As shown in Figure 7, these members may have circular cross section or may have, as shown in Figure 8, toward the inclined pressure iece m, a surface that is inclined correspon ingly, and a curved back turned toward t e rigglng i. In Figure 9 the member 1:.

has a prismatic cross section the two abutment surfaces of which are inclined, viz. on

the side of the piece m according to the inclination of the latter, and on the side of the bars 2' in accordance with the inclination of an inclined surface i provided on the contacting element of the latter.

To adjust the bars 71 a member, such as lever s is pivotally mounted on a bolt t on the door a and is connected to the bars 71 by slot and pin connection u, '0, see Figure 2. Aotubular piece w may be put on the lever stump s to more easily operate lever s.

The insertion of the door a is effected by introducing the door by means of the door operating device in the aperture of the chamber, at an inclination. In so doing, the antifriction members 1?. automatically engage the rear side of the pressure pieces m. Thereupon the tubular handle w is put on the lever stump s and the bars 2' is moved up and down several times by rocking lever s. The anti-friction members n are taken along, by the motion of the bars 2' and,'npon the latter moving downward, they roll downward 0n the inclined pressure pieces m, whereby the sealing frame d is pressed against the packing cord 0.

Inversely, the door is opened by upward shifting the bars 11, whereby the anti-friction members 'n roll upward along the pieces m,

40 this causing the sealing frame 03 and the packmg cord 0 to be loosened. The door is then withdrawn by the aid of the door operating device.

What I claim and desire to secure by Letters Patent, is

1. A coke oven having an oven chamber, a lateral aperture therein and a closure for said aperture comprising a stationa frame for the chamber aperture, a door a apted to fit in a said frame, a packing adapted to seal said door on saidframe, a movable frame having a plurality of hingedly interconnected elements adapted to bear against said packing, pressing means adapted to press said movable frame onto said packing, and an actuating member for said pressing means. 2. A coke oven having an oven chamber, a lateral aperture therein and a closure for said aperture comprising a stationary frame for the chamber aperture, a door adapted to fit in said frame, a packing adapted to seal said door on said frame, a movable frame having a plurality of hingedly interconnected elements adapted to bear against said 65 packing, an articulated frame shiftably arranged on said movable frame, inclined members vertically spaced apart mounted on a stationary part of the oven said members bein inclined inwardly and downwardly toward the oven, anti-friction bars spaced apart, and arranged between and bearing against said articulated frame and said inclined members, and means for shifting said articulated frame.

3. A coke oven having an oven chamber, a lateral aperture therein and a closure for said aperture comprising a stationary frame for the chamber aperture, a door adapted to fit in said frame, a packing adapted to seal said door on said frame, a movable frame having a plurality of hingedly interconnected elements adapted to bear against said packing, an articulated frame shiftably arranged on said movable frame, inclined members vertically spaced apart mounted on a stationary part of the oven said members being inclined inwardly and downwardly toward the oven, anti-friction bars spaced apart and arranged between and bearing against said articulated frame and said inclined members, means for shifting said articulated frame, and springs arranged between said movable frame and said articulated frame.

4. A coke oven having an oven chamber, a lateral aperture therein and a closure for said aperture comprising a stationary frame for the chamber aperture, a door adapted to fit in said frame, a packingadapted to seal said door 0n said frame, a movable frame having a plurality of hingedly interconnected elements adapted to bear against said packing, an articulated frame shiftabl arranged on said movable frame, inclined aces vertically spaced apart on said articulated frame said 10 faces being inclined inwardl and downwardly toward the oven, inclmed members vertically spaced apart mounted on a station-- ary part of the oven said members being inclined inwardly and downwardly toward the, 1 9 oven and adapted to co-operate with said inclined faces, anti-friction bars arranged between and bearing against said inclined faces and inclined members, means for shifting said articulated frame, and springs arrange between said movable frame and said articulated frame. 1

In testimony whereof, I have signed my name to this specification.

CARL OTTO. 

